A phone charger contains a step-down transformer with input voltage of 120V. The required charging current for the phone is 12 A with voltage of 12 V. What should the ratio of the number of turns in the primary coil to the number of turns in the secondary coil in the transformer?
A phone charger contains a step-down transformer with input voltage of 120V. The required charging current for the phone is 12 A with voltage of 12 V. What should the ratio of the number of turns in the primary coil to the number of turns in the secondary coil in the transformer?
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter25: Electromagnetic Induction
Section: Chapter Questions
Problem 60A
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